1408377653 has 4 divisors (see below), whose sum is σ = 1469611488. Its totient is φ = 1347143820.

The previous prime is 1408377643. The next prime is 1408377671. The reversal of 1408377653 is 3567738041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1408377653 - 2¹⁶ = 1408312117 is a prime.

It is a super-2 number, since 2×1408377653² = 3967055226939576818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1408377623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30616883 + ... + 30616928.

It is an arithmetic number, because the mean of its divisors is an integer number (367402872).

Almost surely, 2^1408377653 is an apocalyptic number.

It is an amenable number.

1408377653 is a deficient number, since it is larger than the sum of its proper divisors (61233835).

1408377653 is an equidigital number, since it uses as much as digits as its factorization.

1408377653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61233834.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 1408377653 is about 37528.3579843297. The cubic root of 1408377653 is about 1120.9159315011.

The spelling of 1408377653 in words is "one billion, four hundred eight million, three hundred seventy-seven thousand, six hundred fifty-three".