1461652220 has 24 divisors (see below), whose sum is σ = 3507965664. Its totient is φ = 501137856.

The previous prime is 1461652217. The next prime is 1461652223. The reversal of 1461652220 is 222561641.

It is an interprime number because it is at equal distance from previous prime (1461652217) and next prime (1461652223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461652223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5220047 + ... + 5220326.

It is an arithmetic number, because the mean of its divisors is an integer number (146165236).

Almost surely, 2^1461652220 is an apocalyptic number.

1461652220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1461652220 is an abundant number, since it is smaller than the sum of its proper divisors (2046313444).

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

1461652220 is a wasteful number, since it uses less digits than its factorization.

1461652220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440389 (or 10440387 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1461652220 is about 38231.5605226886. The cubic root of 1461652220 is about 1134.8749679524.

The spelling of 1461652220 in words is "one billion, four hundred sixty-one million, six hundred fifty-two thousand, two hundred twenty".