1505412240 has 40 divisors (see below), whose sum is σ = 4666778688. Its totient is φ = 401443200.

The previous prime is 1505412239. The next prime is 1505412257. The reversal of 1505412240 is 422145051.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1505412240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3136036 + ... + 3136515.

Almost surely, 2^1505412240 is an apocalyptic number.

1505412240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1505412240 is an abundant number, since it is smaller than the sum of its proper divisors (3161366448).

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

1505412240 is a wasteful number, since it uses less digits than its factorization.

1505412240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272567 (or 6272561 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1505412240 is about 38799.6422663921. The cubic root of 1505412240 is about 1146.0893607087.

Adding to 1505412240 its reverse (422145051), we get a palindrome (1927557291).

The spelling of 1505412240 in words is "one billion, five hundred five million, four hundred twelve thousand, two hundred forty".