40070620 has 24 divisors (see below), whose sum is σ = 88578000. Its totient is φ = 15184512.

The previous prime is 40070599. The next prime is 40070621. The reversal of 40070620 is 2607004.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40070621) 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, 52345 + ... + 53104.

It is an arithmetic number, because the mean of its divisors is an integer number (3690750).

Almost surely, 2^40070620 is an apocalyptic number.

It is an amenable number.

40070620 is an abundant number, since it is smaller than the sum of its proper divisors (48507380).

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

40070620 is a wasteful number, since it uses less digits than its factorization.

40070620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105477 (or 105475 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 40070620 is about 6330.1358595215. The cubic root of 40070620 is about 342.1963351763.

Adding to 40070620 its reverse (2607004), we get a palindrome (42677624).

The spelling of 40070620 in words is "forty million, seventy thousand, six hundred twenty".