9940252510 has 16 divisors (see below), whose sum is σ = 18076914576. Its totient is φ = 3935109888.

The previous prime is 9940252489. The next prime is 9940252513. The reversal of 9940252510 is 152520499.

It is a super-2 number, since 2×9940252510² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9940252510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9940252513) 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, 5122872 + ... + 5124811.

It is an arithmetic number, because the mean of its divisors is an integer number (1129807161).

Almost surely, 2^9940252510 is an apocalyptic number.

9940252510 is a deficient number, since it is larger than the sum of its proper divisors (8136662066).

9940252510 is a wasteful number, since it uses less digits than its factorization.

9940252510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247787.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 9940252510 is about 99700.8149916539. The cubic root of 9940252510 is about 2150.1353806946.

It can be divided in two parts, 9940 and 252510, that added together give a triangular number (262450 = T₇₂₄).

The spelling of 9940252510 in words is "nine billion, nine hundred forty million, two hundred fifty-two thousand, five hundred ten".