40070685 has 16 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 21251520.

The previous prime is 40070633. The next prime is 40070707. The reversal of 40070685 is 58607004.

It is a happy number.

It is not a de Polignac number, because 40070685 - 2⁶ = 40070621 is a prime.

It is a congruent number.

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, 4665 + ... + 10094.

It is an arithmetic number, because the mean of its divisors is an integer number (4029480).

Almost surely, 2^40070685 is an apocalyptic number.

It is an amenable number.

40070685 is a deficient number, since it is larger than the sum of its proper divisors (24400995).

40070685 is a wasteful number, since it uses less digits than its factorization.

40070685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14948.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 40070685 is about 6330.1409936904. The cubic root of 40070685 is about 342.1965202059.

Adding to 40070685 its reverse (58607004), we get a palindrome (98677689).

It can be divided in two parts, 40070 and 685, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 40070685 in words is "forty million, seventy thousand, six hundred eighty-five".