70540902 has 16 divisors (see below), whose sum is σ = 156757680. Its totient is φ = 23513616.

The previous prime is 70540879. The next prime is 70540909. The reversal of 70540902 is 20904507.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70540909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653103 + ... + 653210.

It is an arithmetic number, because the mean of its divisors is an integer number (9797355).

Almost surely, 2^70540902 is an apocalyptic number.

70540902 is an abundant number, since it is smaller than the sum of its proper divisors (86216778).

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

70540902 is a wasteful number, since it uses less digits than its factorization.

70540902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306324 (or 1306318 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 70540902 is about 8398.8631373538. The cubic root of 70540902 is about 413.1873367194.

The spelling of 70540902 in words is "seventy million, five hundred forty thousand, nine hundred two".