261413372 has 12 divisors (see below), whose sum is σ = 499061976. Its totient is φ = 118824240.

The previous prime is 261413357. The next prime is 261413401. The reversal of 261413372 is 273314162.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2970563 + ... + 2970650.

It is an arithmetic number, because the mean of its divisors is an integer number (41588498).

Almost surely, 2^261413372 is an apocalyptic number.

261413372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

261413372 is a deficient number, since it is larger than the sum of its proper divisors (237648604).

261413372 is a wasteful number, since it uses less digits than its factorization.

261413372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941228 (or 5941226 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 261413372 is about 16168.2829020277. The cubic root of 261413372 is about 639.4048601589.

The spelling of 261413372 in words is "two hundred sixty-one million, four hundred thirteen thousand, three hundred seventy-two".