70041978 has 24 divisors (see below), whose sum is σ = 151913268. Its totient is φ = 23323392.

The previous prime is 70041941. The next prime is 70042003. The reversal of 70041978 is 87914007.

It can be written as a sum of positive squares in 2 ways, for example, as 67617729 + 2424249 = 8223^2 + 1557^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29400 + ... + 31692.

Almost surely, 2^70041978 is an apocalyptic number.

70041978 is an abundant number, since it is smaller than the sum of its proper divisors (81871290).

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

70041978 is a wasteful number, since it uses less digits than its factorization.

70041978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3995 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 70041978 is about 8369.1085546789. The cubic root of 70041978 is about 412.2108960491.

The spelling of 70041978 in words is "seventy million, forty-one thousand, nine hundred seventy-eight".