11402540 has 24 divisors (see below), whose sum is σ = 24237360. Its totient is φ = 4505408.

The previous prime is 11402537. The next prime is 11402543. The reversal of 11402540 is 4520411.

It is an interprime number because it is at equal distance from previous prime (11402537) and next prime (11402543).

It is not an unprimeable number, because it can be changed into a prime (11402543) 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, 1775 + ... + 5094.

It is an arithmetic number, because the mean of its divisors is an integer number (1009890).

Almost surely, 2^11402540 is an apocalyptic number.

11402540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11402540 is an abundant number, since it is smaller than the sum of its proper divisors (12834820).

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

11402540 is a wasteful number, since it uses less digits than its factorization.

11402540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961 (or 6959 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 11402540 is about 3376.7647238148. The cubic root of 11402540 is about 225.0784253360.

Adding to 11402540 its product of nonzero digits (160), we get a triangular number (11402700 = T₄₇₇₅).

Adding to 11402540 its reverse (4520411), we get a palindrome (15922951).

The spelling of 11402540 in words is "eleven million, four hundred two thousand, five hundred forty".