153742840 has 16 divisors (see below), whose sum is σ = 345921480. Its totient is φ = 61497120.

The previous prime is 153742801. The next prime is 153742859. The reversal of 153742840 is 48247351.

It is a junction number, because it is equal to n+sod(n) for n = 153742796 and 153742805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921746 + ... + 1921825.

Almost surely, 2^153742840 is an apocalyptic number.

153742840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153742840 is an abundant number, since it is smaller than the sum of its proper divisors (192178640).

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

153742840 is a wasteful number, since it uses less digits than its factorization.

153742840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843582 (or 3843578 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 153742840 is about 12399.3080452096. The cubic root of 153742840 is about 535.7123187060.

The spelling of 153742840 in words is "one hundred fifty-three million, seven hundred forty-two thousand, eight hundred forty".