1045637604 has 72 divisors (see below), whose sum is σ = 2900282112. Its totient is φ = 315007680.

The previous prime is 1045637603. The next prime is 1045637617. The reversal of 1045637604 is 4067365401.

It is a happy number.

1045637604 is a `hidden beast` number, since 1 + 0 + 45 + 6 + 3 + 7 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1045637603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60877 + ... + 76139.

It is an arithmetic number, because the mean of its divisors is an integer number (40281696).

Almost surely, 2^1045637604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045637604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450141056).

1045637604 is an abundant number, since it is smaller than the sum of its proper divisors (1854644508).

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

1045637604 is a wasteful number, since it uses less digits than its factorization.

1045637604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15457 (or 15452 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1045637604 is about 32336.3201988105. The cubic root of 1045637604 is about 1014.9868082118.

The spelling of 1045637604 in words is "one billion, forty-five million, six hundred thirty-seven thousand, six hundred four".