70258090 has 32 divisors (see below), whose sum is σ = 149197824. Its totient is φ = 23310720.

The previous prime is 70258081. The next prime is 70258099. The reversal of 70258090 is 9085207.

It is an interprime number because it is at equal distance from previous prime (70258081) and next prime (70258099).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (70258099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14019 + ... + 18358.

It is an arithmetic number, because the mean of its divisors is an integer number (4662432).

Almost surely, 2^70258090 is an apocalyptic number.

70258090 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70258090 is an abundant number, since it is smaller than the sum of its proper divisors (78939734).

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

70258090 is a wasteful number, since it uses less digits than its factorization.

70258090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32422.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 70258090 is about 8382.0099021655. The cubic root of 70258090 is about 412.6344147203.

The spelling of 70258090 in words is "seventy million, two hundred fifty-eight thousand, ninety".