70641492 has 24 divisors (see below), whose sum is σ = 165562656. Its totient is φ = 23442528.

The previous prime is 70641491. The next prime is 70641499. The reversal of 70641492 is 29414607.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70641491) 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, 10243 + ... + 15690.

It is an arithmetic number, because the mean of its divisors is an integer number (6898444).

Almost surely, 2^70641492 is an apocalyptic number.

It is an amenable number.

70641492 is an abundant number, since it is smaller than the sum of its proper divisors (94921164).

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

70641492 is a wasteful number, since it uses less digits than its factorization.

70641492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26167 (or 26165 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 70641492 is about 8404.8493145327. The cubic root of 70641492 is about 413.3836425640.

The spelling of 70641492 in words is "seventy million, six hundred forty-one thousand, four hundred ninety-two".