40078070 has 16 divisors (see below), whose sum is σ = 73502640. Its totient is φ = 15728544.

The previous prime is 40078069. The next prime is 40078079. The reversal of 40078070 is 7087004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40078079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37280 + ... + 38339.

It is an arithmetic number, because the mean of its divisors is an integer number (4593915).

Almost surely, 2^40078070 is an apocalyptic number.

40078070 is a deficient number, since it is larger than the sum of its proper divisors (33424570).

40078070 is a wasteful number, since it uses less digits than its factorization.

40078070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75679.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 40078070 is about 6330.7242871570. The cubic root of 40078070 is about 342.2175411099.

The spelling of 40078070 in words is "forty million, seventy-eight thousand, seventy".