1653042380 has 24 divisors (see below), whose sum is σ = 3786970320. Its totient is φ = 601106240.

The previous prime is 1653042371. The next prime is 1653042383. The reversal of 1653042380 is 832403561.

It is a super-2 number, since 2×1653042380² = 5465098220152128800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1653042383) 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, 3756695 + ... + 3757134.

It is an arithmetic number, because the mean of its divisors is an integer number (157790430).

Almost surely, 2^1653042380 is an apocalyptic number.

1653042380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1653042380 is an abundant number, since it is smaller than the sum of its proper divisors (2133927940).

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

1653042380 is a wasteful number, since it uses less digits than its factorization.

1653042380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513849 (or 7513847 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1653042380 is about 40657.6238853182. The cubic root of 1653042380 is about 1182.3915825671.

The spelling of 1653042380 in words is "one billion, six hundred fifty-three million, forty-two thousand, three hundred eighty".