70440078 has 16 divisors (see below), whose sum is σ = 149167440. Its totient is φ = 22098816.

The previous prime is 70440067. The next prime is 70440089. The reversal of 70440078 is 87004407.

It is an interprime number because it is at equal distance from previous prime (70440067) and next prime (70440089).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345193 + ... + 345396.

It is an arithmetic number, because the mean of its divisors is an integer number (9322965).

Almost surely, 2^70440078 is an apocalyptic number.

70440078 is an abundant number, since it is smaller than the sum of its proper divisors (78727362).

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

70440078 is a wasteful number, since it uses less digits than its factorization.

70440078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690611.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 70440078 is about 8392.8587501518. The cubic root of 70440078 is about 412.9903868532.

The spelling of 70440078 in words is "seventy million, four hundred forty thousand, seventy-eight".