1503749450 has 48 divisors (see below), whose sum is σ = 3384586944. Its totient is φ = 485241600.

The previous prime is 1503749419. The next prime is 1503749459. The reversal of 1503749450 is 549473051.

It is a super-2 number, since 2×1503749450² = 4522524816750605000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1503749459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120416 + ... + 132315.

It is an arithmetic number, because the mean of its divisors is an integer number (70512228).

Almost surely, 2^1503749450 is an apocalyptic number.

1503749450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1503749450 is an abundant number, since it is smaller than the sum of its proper divisors (1880837494).

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

1503749450 is a wasteful number, since it uses less digits than its factorization.

1503749450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252767 (or 252762 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1503749450 is about 38778.2084423713. The cubic root of 1503749450 is about 1145.6672375738.

The spelling of 1503749450 in words is "one billion, five hundred three million, seven hundred forty-nine thousand, four hundred fifty".