1520061040 has 40 divisors (see below), whose sum is σ = 3554602848. Its totient is φ = 604504320.

The previous prime is 1520061029. The next prime is 1520061043. The reversal of 1520061040 is 401600251.

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

It is a junction number, because it is equal to n+sod(n) for n = 1520060999 and 1520061017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520061043) 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, 41076 + ... + 68755.

Almost surely, 2^1520061040 is an apocalyptic number.

1520061040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520061040 is an abundant number, since it is smaller than the sum of its proper divisors (2034541808).

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

1520061040 is a wasteful number, since it uses less digits than its factorization.

1520061040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110017 (or 110011 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1520061040 is about 38987.9601928595. The cubic root of 1520061040 is about 1149.7948064899.

Adding to 1520061040 its reverse (401600251), we get a palindrome (1921661291).

The spelling of 1520061040 in words is "one billion, five hundred twenty million, sixty-one thousand, forty".