155416442 has 16 divisors (see below), whose sum is σ = 235025280. Its totient is φ = 77077728.

The previous prime is 155416441. The next prime is 155416519. The reversal of 155416442 is 244614551.

It is a junction number, because it is equal to n+sod(n) for n = 155416399 and 155416408.

It is not an unprimeable number, because it can be changed into a prime (155416441) 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, 165398 + ... + 166334.

It is an arithmetic number, because the mean of its divisors is an integer number (14689080).

Almost surely, 2^155416442 is an apocalyptic number.

155416442 is a deficient number, since it is larger than the sum of its proper divisors (79608838).

155416442 is a wasteful number, since it uses less digits than its factorization.

155416442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525.

The product of its digits is 19200, while the sum is 32.

The square root of 155416442 is about 12466.6130925765. The cubic root of 155416442 is about 537.6491795767.

The spelling of 155416442 in words is "one hundred fifty-five million, four hundred sixteen thousand, four hundred forty-two".