1045662420 has 96 divisors (see below), whose sum is σ = 3210963840. Its totient is φ = 252149760.

The previous prime is 1045662419. The next prime is 1045662421. The reversal of 1045662420 is 242665401.

It is an interprime number because it is at equal distance from previous prime (1045662419) and next prime (1045662421).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045662421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123276 + ... + 131484.

It is an arithmetic number, because the mean of its divisors is an integer number (33447540).

Almost surely, 2^1045662420 is an apocalyptic number.

1045662420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045662420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605481920).

1045662420 is an abundant number, since it is smaller than the sum of its proper divisors (2165301420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045662420 is a wasteful number, since it uses less digits than its factorization.

1045662420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425 (or 8423 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1045662420 is about 32336.7039136644. The cubic root of 1045662420 is about 1014.9948376710.

The spelling of 1045662420 in words is "one billion, forty-five million, six hundred sixty-two thousand, four hundred twenty".