240356842 has 32 divisors (see below), whose sum is σ = 412340544. Its totient is φ = 104092800.

The previous prime is 240356833. The next prime is 240356849. The reversal of 240356842 is 248653042.

It is a super-2 number, since 2×240356842² = 115542822992425928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240356798 and 240356807.

It is not an unprimeable number, because it can be changed into a prime (240356849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35688 + ... + 41884.

It is an arithmetic number, because the mean of its divisors is an integer number (12885642).

Almost surely, 2^240356842 is an apocalyptic number.

240356842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

240356842 is a deficient number, since it is larger than the sum of its proper divisors (171983702).

240356842 is a wasteful number, since it uses less digits than its factorization.

240356842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 240356842 is about 15503.4461330376. The cubic root of 240356842 is about 621.7543461861.

The spelling of 240356842 in words is "two hundred forty million, three hundred fifty-six thousand, eight hundred forty-two".