40660434 has 32 divisors (see below), whose sum is σ = 92067840. Its totient is φ = 13296816.

The previous prime is 40660427. The next prime is 40660439. The reversal of 40660434 is 43406604.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40660398 and 40660407.

It is not an unprimeable number, because it can be changed into a prime (40660439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4242 + ... + 9965.

It is an arithmetic number, because the mean of its divisors is an integer number (2877120).

Almost surely, 2^40660434 is an apocalyptic number.

40660434 is an abundant number, since it is smaller than the sum of its proper divisors (51407406).

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

40660434 is a wasteful number, since it uses less digits than its factorization.

40660434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14271 (or 14265 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 40660434 is about 6376.5534577858. The cubic root of 40660434 is about 343.8671347808.

The spelling of 40660434 in words is "forty million, six hundred sixty thousand, four hundred thirty-four".