70251408 has 80 divisors (see below), whose sum is σ = 203290560. Its totient is φ = 23226624.

The previous prime is 70251397. The next prime is 70251437. The reversal of 70251408 is 80415207.

70251408 is a `hidden beast` number, since 7 + 0 + 251 + 408 = 666.

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

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, 58591 + ... + 59777.

It is an arithmetic number, because the mean of its divisors is an integer number (2541132).

Almost surely, 2^70251408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70251408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101645280).

70251408 is an abundant number, since it is smaller than the sum of its proper divisors (133039152).

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

70251408 is a wasteful number, since it uses less digits than its factorization.

70251408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 70251408 is about 8381.6113009373. The cubic root of 70251408 is about 412.6213329026.

The spelling of 70251408 in words is "seventy million, two hundred fifty-one thousand, four hundred eight".