49019400 has 144 divisors (see below), whose sum is σ = 166769460. Its totient is φ = 12902400.

The previous prime is 49019389. The next prime is 49019407. The reversal of 49019400 is 491094.

It can be written as a sum of positive squares in 6 ways, for example, as 9253764 + 39765636 = 3042^2 + 6306^2 .

It is not an unprimeable number, because it can be changed into a prime (49019407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 203280 + ... + 203520.

Almost surely, 2^49019400 is an apocalyptic number.

49019400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49019400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83384730).

49019400 is an abundant number, since it is smaller than the sum of its proper divisors (117750060).

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

49019400 is a wasteful number, since it uses less digits than its factorization.

49019400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 49019400 is about 7001.3855771554. The cubic root of 49019400 is about 365.9788575084.

The spelling of 49019400 in words is "forty-nine million, nineteen thousand, four hundred".