40619970 has 96 divisors (see below), whose sum is σ = 113218560. Its totient is φ = 10068480.

The previous prime is 40619963. The next prime is 40619977. The reversal of 40619970 is 7991604.

It is an interprime number because it is at equal distance from previous prime (40619963) and next prime (40619977).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40619977) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212575 + ... + 212765.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 2^40619970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40619970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56609280).

40619970 is an abundant number, since it is smaller than the sum of its proper divisors (72598590).

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

40619970 is a wasteful number, since it uses less digits than its factorization.

40619970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 40619970 is about 6373.3797941124. The cubic root of 40619970 is about 343.7530282929.

The spelling of 40619970 in words is "forty million, six hundred nineteen thousand, nine hundred seventy".