40246340 has 12 divisors (see below), whose sum is σ = 84517356. Its totient is φ = 16098528.

The previous prime is 40246333. The next prime is 40246363. The reversal of 40246340 is 4364204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14500864 + 25745476 = 3808^2 + 5074^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006139 + ... + 1006178.

It is an arithmetic number, because the mean of its divisors is an integer number (7043113).

Almost surely, 2^40246340 is an apocalyptic number.

It is an amenable number.

40246340 is an abundant number, since it is smaller than the sum of its proper divisors (44271016).

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

40246340 is a wasteful number, since it uses less digits than its factorization.

40246340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012326 (or 2012324 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40246340 is about 6344.0003152585. Note that the first 3 decimals coincide. The cubic root of 40246340 is about 342.6958121603.

The spelling of 40246340 in words is "forty million, two hundred forty-six thousand, three hundred forty".