40670919 has 24 divisors (see below), whose sum is σ = 62517312. Its totient is φ = 25390080.

The previous prime is 40670879. The next prime is 40670947. The reversal of 40670919 is 91907604.

It is a de Polignac number, because none of the positive numbers 2^k-40670919 is a prime.

It is a super-2 number, since 2×40670919² = 3308247304609122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40670989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36322 + ... + 37424.

It is an arithmetic number, because the mean of its divisors is an integer number (2604888).

Almost surely, 2^40670919 is an apocalyptic number.

40670919 is a deficient number, since it is larger than the sum of its proper divisors (21846393).

40670919 is a wasteful number, since it uses less digits than its factorization.

40670919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 40670919 is about 6377.3755573904. The cubic root of 40670919 is about 343.8966896141.

The spelling of 40670919 in words is "forty million, six hundred seventy thousand, nine hundred nineteen".