70299072 has 126 divisors (see below), whose sum is σ = 209848704. Its totient is φ = 22498560.

The previous prime is 70299071. The next prime is 70299113. The reversal of 70299072 is 27099207.

It is a super-2 number, since 2×70299072² = 9883919048122368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70299071) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 553473 + ... + 553599.

Almost surely, 2^70299072 is an apocalyptic number.

70299072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70299072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104924352).

70299072 is an abundant number, since it is smaller than the sum of its proper divisors (139549632).

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

70299072 is a wasteful number, since it uses less digits than its factorization.

70299072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 70299072 is about 8384.4541861710. The cubic root of 70299072 is about 412.7146299033.

The spelling of 70299072 in words is "seventy million, two hundred ninety-nine thousand, seventy-two".