40279030 has 16 divisors (see below), whose sum is σ = 79093584. Its totient is φ = 14646880.

The previous prime is 40279027. The next prime is 40279033. The reversal of 40279030 is 3097204.

It is an interprime number because it is at equal distance from previous prime (40279027) and next prime (40279033).

It is a junction number, because it is equal to n+sod(n) for n = 40278986 and 40279004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40279033) 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, 182977 + ... + 183196.

It is an arithmetic number, because the mean of its divisors is an integer number (4943349).

Almost surely, 2^40279030 is an apocalyptic number.

40279030 is a deficient number, since it is larger than the sum of its proper divisors (38814554).

40279030 is a wasteful number, since it uses less digits than its factorization.

40279030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366191.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 40279030 is about 6346.5762423530. The cubic root of 40279030 is about 342.7885716869.

The spelling of 40279030 in words is "forty million, two hundred seventy-nine thousand, thirty".