40929420 has 192 divisors, whose sum is σ = 144506880. Its totient is φ = 8439552.

The previous prime is 40929407. The next prime is 40929431. The reversal of 40929420 is 2492904.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 183429 + ... + 183651.

It is an arithmetic number, because the mean of its divisors is an integer number (752640).

Almost surely, 2^40929420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40929420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72253440).

40929420 is an abundant number, since it is smaller than the sum of its proper divisors (103577460).

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

40929420 is a wasteful number, since it uses less digits than its factorization.

40929420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 40929420 is about 6397.6104914257. The cubic root of 40929420 is about 344.6237443957.

The spelling of 40929420 in words is "forty million, nine hundred twenty-nine thousand, four hundred twenty".