49089903390 has 320 divisors, whose sum is σ = 148164774912. Its totient is φ = 11561356800.

The previous prime is 49089903371. The next prime is 49089903403. The reversal of 49089903390 is 9330998094.

49089903390 is a `hidden beast` number, since 4 + 90 + 89 + 90 + 3 + 390 = 666.

It is a super-2 number, since 2×49089903390² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 46179999 + ... + 46181061.

Almost surely, 2^49089903390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49089903390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74082387456).

49089903390 is an abundant number, since it is smaller than the sum of its proper divisors (99074871522).

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

49089903390 is a wasteful number, since it uses less digits than its factorization.

49089903390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The spelling of 49089903390 in words is "forty-nine billion, eighty-nine million, nine hundred three thousand, three hundred ninety".