70472490 has 32 divisors (see below), whose sum is σ = 184510656. Its totient is φ = 17084160.

The previous prime is 70472489. The next prime is 70472509. The reversal of 70472490 is 9427407.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106447 + ... + 107106.

It is an arithmetic number, because the mean of its divisors is an integer number (5765958).

Almost surely, 2^70472490 is an apocalyptic number.

70472490 is an abundant number, since it is smaller than the sum of its proper divisors (114038166).

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

70472490 is a wasteful number, since it uses less digits than its factorization.

70472490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213574.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 70472490 is about 8394.7894553705. The cubic root of 70472490 is about 413.0537210242.

Adding to 70472490 its reverse (9427407), we get a palindrome (79899897).

The spelling of 70472490 in words is "seventy million, four hundred seventy-two thousand, four hundred ninety".